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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DS_FOUNDATION_PSBASICTEMPLATES_H
#define QT3DS_FOUNDATION_PSBASICTEMPLATES_H
#include "foundation/Qt3DS.h"
namespace qt3ds {
namespace foundation {
template <typename A>
struct Equal
{
bool operator()(const A &a, const A &b) const { return a == b; }
};
template <typename A>
struct Less
{
bool operator()(const A &a, const A &b) const { return a < b; }
};
template <typename A>
struct Greater
{
bool operator()(const A &a, const A &b) const { return a > b; }
};
template <class F, class S>
class Pair
{
public:
F first;
S second;
Pair()
: first(F())
, second(S())
{
}
Pair(const F &f, const S &s)
: first(f)
, second(s)
{
}
Pair(const Pair &p)
: first(p.first)
, second(p.second)
{
}
// CN - fix for /.../Qt3DSBasicTemplates.h(61) : warning C4512: 'nv::foundation::Pair<F,S>' :
// assignment operator could not be generated
Pair &operator=(const Pair &p)
{
first = p.first;
second = p.second;
return *this;
}
bool operator==(const Pair &p) const { return first == p.first && second == p.second; }
};
template <unsigned int A>
struct LogTwo
{
static const unsigned int value = LogTwo<(A >> 1)>::value + 1;
};
template <>
struct LogTwo<1>
{
static const unsigned int value = 0;
};
template <typename T>
struct UnConst
{
typedef T Type;
};
template <typename T>
struct UnConst<const T>
{
typedef T Type;
};
} // namespace foundation
} // namespace qt3ds
#endif
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